Joy-it COM-FP-R301T - 3.3 Usage with the Library; 4. Usage with Arduino; 4.1 Connection

You can use the following command to query your fingerprint to see if it is
found in your data.
python3 /usr/share/doc/python3-fingerprint/examples/example_search.py
You can see how many fingerprints are currently stored by using the
following command to see:
python3 /usr/share/doc/python3-fingerprint/examples/example_index.py
4. USAGE WITH ARDUINO
4.1 Connection
3.3 Usage with the library
If you now execute the following command, you can store a fingerprint.
python3 /usr/share/doc/python3-fingerprint/examples/example_enroll.py
Fingerprint sensor COM-KY051VT Arduino
5 V (Red) VCCb 5 V
- VCCa 3.3V
GND (Black) GND GND
- B2 Pin 2
TXD (Yellow) A2 -
- B1 Pin 3
RXD (White) Pin 3 -
Touch (Green) - -
3,3 V (Blue) - -